The chance of retrograde ejaculation after a single incission in the
bladder neck is between 10 and 20%, which means that 2 out of 10
patients get this problem. If you get it, then it will stay with you
unless the prostate grows enough to block the bladder neck, which could
cause antegrade ejaculation, but most likely also voiding difficulty.

TUIP (transurethral incission of the prostate) has the same results as
TURP when it is done in small prostates (e.g. 30 grams). This was
previously done with a resectoscope, but nowadays it can also be done
with a KTP laser.

I would recommend doing a GU tract ultrasound scan and measure the
uroflow and check the residual urine after voiding to evaluate your
situation. I would also check your urine. If you are heading for a full
PVP due to residual obstruction, you will void better, and the retro
will continue there.

The total ablation of the bladder neck is usually part of the normal
PVP, and of a TURP. The chances of retrograde ejaculation after this
(if the PVP is aggressive) are in the region of 60-70%.